html,
body {
    width: 100%;
    margin: 0;
}

ul,
ol {
    padding: 0;
    margin: 0;
    list-style: none;
}
li{
    display: list-item;
    text-align: -webkit-match-parent;
}

input,
textarea {
    outline: none;
}

input,
textarea,
button {
    border: 1px solid #ccc;
    box-sizing: border-box;
}

a {
    display: block;
    text-decoration: none;
    color: #000;
    outline: none;
    font-size: 0;
    /* 移动端点击高亮 */
    -webkit-tap-highlight-color: transparent;
}
img{
    vertical-align: middle;
    overflow-clip-margin: content-box;
    overflow: clip;
}

div,
header,
nav,
footer,
section,
ul,
ol,
form {
    box-sizing: border-box;
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
    margin: 0;
    box-sizing: border-box;
    padding: 0;
}
